GM 8.5 ten bolt crush sleeve

Dragsinger · 03-03-2015, 08:22 PM

Rory,

what you say is correct. I have in fact raced without a crush sleeve setup just as you describe.

However, I find comfort in installing the solid sleeve so the pinion nut can be "tight" Defining "solid" as a solid spacer with shims to arrive at the per-load you want.

You will find many opinions, I build up with VERY light pre-load. Without pinion seal I can "spin" the assembled pinion.

With my setup the pinion seal has about the same drag as my pre-load.

Alan Nyhus · 03-03-2015, 10:23 PM

I've never used a crush sleeve on any of the GM rears. A bit of red Loctite where the front pinion bearing locates on the pinion and a dab for the pinion nut is all I've ever used.

03-03-2015, 08:22 PM	#1
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,760 Likes: 5 Liked 99 Times in 60 Posts	Re: GM 8.5 ten bolt crush sleeve Rory, what you say is correct. I have in fact raced without a crush sleeve setup just as you describe. However, I find comfort in installing the solid sleeve so the pinion nut can be "tight" Defining "solid" as a solid spacer with shims to arrive at the per-load you want. You will find many opinions, I build up with VERY light pre-load. Without pinion seal I can "spin" the assembled pinion. With my setup the pinion seal has about the same drag as my pre-load. __________________ Larry Woodfin 471W

03-03-2015, 10:23 PM	#2
Alan Nyhus VIP Member Join Date: Dec 2002 Location: Lower Dakota territory Posts: 1,182 Likes: 1,074 Liked 800 Times in 237 Posts	Re: GM 8.5 ten bolt crush sleeve I've never used a crush sleeve on any of the GM rears. A bit of red Loctite where the front pinion bearing locates on the pinion and a dab for the pinion nut is all I've ever used. __________________ "That'll never work....."